Hi

use CGI;
my $co = new CGI;
use CGI qw(:standard);
use CGI::Carp qw(fatalsToBrowser);
use strict;
use diagnostics;
print $co->header;
print $co->start_html();
print $co->start_form(-method => "POST", -action => 'first.cgi');
print $co->h4("Name").$co->p;
print $co->textfield({name => 'name', id => 'name'}).$co->p;
print $co->submit(-onclick=>"return CheckForEmptyTextbox()");
print $co->reset;
print $co->end_form;
print $co->end_html;
[download]

Above CGI code is calling CheckForEmptyTextbox() function in javascript. But this javascript is in the different file.

Javascript

print <<CheckNameBox;
<script language="JavaScript">
function CheckForEmptyTextbox() {
    if(document.getElementById("name").value=="") {
        alert ("Emtpy");
    return false;
    }    
    return true;
} // end function
</script>
CheckNameBox
[download]

How to call above javascript function from CGI program which is in different files??

If I paste the above javascript code in the same CGI file, it works.

But what if I want javascript code to be in different file??

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